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Commit 8c2b1435 authored by Liu Xue's avatar Liu Xue Committed by Jaegeuk Kim
Browse files

f2fs: recovery missing dot dentries in root directory 



If f2fs was corrupted with missing dot dentries in root dirctory,
it needs to recover them after fsck.f2fs set F2FS_INLINE_DOTS flag
in directory inode when fsck.f2fs detects missing dot dentries.

Signed-off-by: default avatarXue Liu <liuxueliu.liu@huawei.com>
Signed-off-by: default avatarYong Sheng <shengyong1@huawei.com>
Reviewed-by: default avatarChao Yu <chao2.yu@samsung.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 19c7377b

fs/f2fs/namei.c

+7 −0
Original line number Diff line number Diff line
@@ -260,6 +260,7 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, 
	struct page *page;

	nid_t ino;

	int err = 0;

	unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir));



	if (dentry->d_name.len > F2FS_NAME_LEN)

		return ERR_PTR(-ENAMETOOLONG);
@@ -276,6 +277,12 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, 
	if (IS_ERR(inode))

		return ERR_CAST(inode);



	if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) {

		err = __recover_dot_dentries(dir, root_ino);

		if (err)

			goto err_out;

	}



	if (f2fs_has_inline_dots(inode)) {

		err = __recover_dot_dentries(inode, dir->i_ino);

		if (err)